Determine:The theoretical mixture proportions of all concrete constituents based on 1 yd3 of concrete on an oven dry basis for aggregates.
Concrete is required for a sidewalk in NJ. A specified compressive strength, fc, of 3800 psi is required at 28 days using an ASTM C 150 Type I portland cement. The design calls for a minimum of 2 in. of concrete cover over the reinforcing steel. The minimum distance between reinforcing bars is 3 in. […]